When my husband was still in the Navy, we moved constantly so we saved all the boxes from the products that we bought so that when we move again, we can still use the original boxes. Now that he is done, we are getting rid of all of them. I emptied our seller from those piles of boxes and store most of our unused stuff there.
Speaking of boxes, I remember the big shoe store in Ohio, they do not have wooden shelves for their display but they used their empty boxes to make shelves. It was pretty neat, too bad, I wasn't able to take a photo of it. Next time when we go there, I would try to take a shot so you can see.